Vibroplex Telegraph Key, Used at Ford Motor Company, 1923

Material

Brass (Alloy)
Wood (Plant Material)
Steel (Alloy)
Nickel (Metal)
Bakelite (TM)

Dimensions

Height: 4.5 in

Width: 5.5 in

Length: 9 in

Inscriptions

plaque: The Vibroplex Company [trade mark] Vibroplex The Vibroplex Company, Inc. 825 Broadway, New York No. 89042 U.S. Patents 763303 . . . 1043349

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